Stability of Sparse Station Data Inversion for Deviatoric Moment Tensor Solution of Regional Earthquakes
详细信息
- 责任者：Zheng Jianchang (Institute of Geophysics ; China Earthquake Administration ; Beijing 100081 ; China) ; Chen Yuntai
- 刊名：Acta Seismologica Sinica
- 出版年：2012
- 卷期：34(1)
- 关键词：地震矩 ; seismic moment ; 东海 ; East China Sea
- 页码：p.31-43
- 图表：10 illus., 4 tables, 37 refs.
- 分类号：0500
- issnNo：ISSN0253-3782
- isbnNo：CN11-2021/P
摘要
Observations from regional seismic network are used in studying deviatoric moment tensor for the MW5.4 earthquake of 26 Febuary 2010 in Taiwan adjacent area.The smallest rotation angle defined by Kagan (1991) between the result and the Havard GCMT solution is 9.5°, and the focal depth is 41 km, which is close to USGS location result and possibly closer to the real source.The paper also discusses the effect of station distribution on deviatoric moment tensor inversion by selecting different station combinations.